Finding the Fourth Proportional to 649,315,744.28, 896,031,721.34 and 351,951,601.96
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Solution
The fourth proportional to 649,315,744.28, 896,031,721.34 and 351,951,601.96 is: 485,680,198.75
Step by Step Solution
- Step 1: Write the proportion equation
649,315,744.28 : 896,031,721.34 = 351,951,601.96 : x - Step 2: Convert to fraction form
649,315,744.28/896,031,721.34 = 351,951,601.96/x - Step 3: Cross multiply
649,315,744.28x = 896,031,721.34 × 351,951,601.96 - Step 4: Simplify right side
649,315,744.28x = 315,359,799,732,589,312 - Step 5: Solve for x
x = 315,359,799,732,589,312/649,315,744.28 - Step 6: Final answer
x = 485,680,198.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.